# MediaChef > Free open-source app for macOS, Windows and Linux: convert video and audio on your own computer and transcribe speech to text with Whisper. No uploads, no size limits, no subscription. Version 0.8.5. Free and open source under GPL-3.0. Bundles FFmpeg 9.0.1 and whisper.cpp v1.7.6, so it runs with no network access and no file-size limit. 17 built-in recipes for macOS, Windows and Linux. ## Pages - [MediaChef — free offline video converter with transcription](https://mediachef.app/en/): Free open-source app for macOS, Windows and Linux: convert video and audio on your own computer and transcribe speech to text with Whisper. No uploads, no size limits, no subscription. - [Convert MP4 to MP3 — free, offline, on your computer](https://mediachef.app/en/convert-mp4-to-mp3/): Pull the audio out of an MP4 and save it as MP3 on your own computer: no upload, no size cap, no watermark. Free open-source app for macOS, Windows and Linux. - [Transcribe audio to text — offline, on your own computer](https://mediachef.app/en/transcribe-audio-to-text/): Turn recordings into text on your own computer with Whisper: TXT, SRT, VTT or JSON. No upload, no per-minute fee, no length limit. Free app for macOS, Windows and Linux. - [All 17 recipes](https://mediachef.app/en/recipes/): Every recipe MediaChef ships with: convert video and audio, compress, trim, resize, pull the sound out of a clip, make a GIF, transcribe speech to text with Whisper. Free, open source, runs offline on macOS, Windows and Linux. - [Compress video on your own computer](https://mediachef.app/en/compress-video/): Make a video file smaller on your own computer: pick one of three quality levels, press start. No upload, no size cap, no watermark. Measured sizes, resulting bitrates, and the one case where compressing makes the file bigger. - [Video to GIF, on your own computer](https://mediachef.app/en/video-to-gif/): Turn any video into an animated GIF on your own computer: pick frame rate and width, press start. No upload, no size limit, no watermark. Measured file sizes for every setting inside. - [Trim a video without losing quality](https://mediachef.app/en/trim-video/): Cut a piece out of a video on your own computer without touching the quality: the stream is copied, not recalculated, so it finishes in hundredths of a second whatever the length. Measured times, and the keyframe limit explained honestly. - [Voice typing that never leaves your computer](https://mediachef.app/en/voice-to-text/): Press a hotkey anywhere, speak, and the words appear where your cursor is. Recognition runs on your own machine with Whisper — nothing is uploaded, nothing is metered. Measured latency, model sizes and the one permission it needs, all inside. - [Turn a video into SRT subtitles](https://mediachef.app/en/video-to-srt/): How to get timed SRT subtitles out of a video without uploading it anywhere. Measured on a real machine: four Whisper models timed side by side, how long each subtitle line comes out, and what the four output formats actually contain. ## Translations Every page exists in 10 languages (en, ru, es, pt, fr, de, pl, it, ar, zh), linked to each other with hreflang. Swap the language code in the path; the slug is translated too, so the full list lives in sitemap.xml. ## Notes - Nothing on this site requires JavaScript; the HTML is complete as served. - Figures in the guides are our own measurements, and the guides say what was measured. - Made by Egor Protasov (Егор Протасов): https://egorprotasov.ru/ - Source code: https://github.com/Kom1sh/mediachef - Corrections and questions: hello@mediachef.app ## Sitemap - [All URLs](https://mediachef.app/sitemap.xml)